2 weeks old lr/ak47 their edges of the leaves started to dry in paches and fold and they started to get yellow and twisted,they are drying more every day now the growth seems to stop.this started after 3-4 days under cfls 23wx5 every plant had one and the temp. 24c humidity 40-50%.now they are under a 430 hps same conditions 65cm from the light i gave em distilled water then now i give em tapwater that sits for a day or 2

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this happened to you before? the soil may be too strong, what soil is that? are you feeding them anything?

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SOL: It's the Russian. AVI:A Russian? SOL:To be technical hes Uzbekistanian?AVI:I been dealing with those Russian dogs. AVI:give me a name.SOL:Urinov,Boris TONY:BORIS the BLADE? as in BORIS THE BULLET DODGER?AVI:why do they call him the bullet dodger?TONY: bcus he dodges Bullets Avi

also, this looks like a nute deficiency...its important to note what soil you are using and if you feed them, i would take this post to the plant problems section, you will get very good help there...for future reference, you should add perlite to your soil mix

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SOL: It's the Russian. AVI:A Russian? SOL:To be technical hes Uzbekistanian?AVI:I been dealing with those Russian dogs. AVI:give me a name.SOL:Urinov,Boris TONY:BORIS the BLADE? as in BORIS THE BULLET DODGER?AVI:why do they call him the bullet dodger?TONY: bcus he dodges Bullets Avi

sorry again, i think thats a very common N deficiency

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SOL: It's the Russian. AVI:A Russian? SOL:To be technical hes Uzbekistanian?AVI:I been dealing with those Russian dogs. AVI:give me a name.SOL:Urinov,Boris TONY:BORIS the BLADE? as in BORIS THE BULLET DODGER?AVI:why do they call him the bullet dodger?TONY: bcus he dodges Bullets Avi

the leaves twisting could be an indication of a ph problem. It looks like an N or mag deficiency or lockout. I would say flush for two days with Phed water (6.5-7 for soil) and then try a round of nutes at 1/2 strength. This is the third time this has happened?? Have you changed the soil mix your using? could be throwing your ph off.

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Its all a lie! http://www.rollitup.org/grow-journal...ml#post2479535

I agree, looks like a nitro deficency. Do you let your soil dry before rewatering? What type of soil is it?

i live in europe and the soil u probably wouldn recognize its a german brand the name is seedlings has a ph of 6.5 i used it before i grew 7 diferent strains in it and had no problems,this is the first time i see this condition,to me it looked like a n deficiency but it started after 3 or 4 days thats a little to soon for a deficiency and it started as drying and twisting of the leaves leater they got yellow,about the nutes i did add a little fert. in the water about 3 days ago 1/4 stenght 10-5-6 ,and it didnt help,i didnt want to do stronger becouse i got organic fer in this soil and i did put perlite u just dont see it on the pics becouse i covered the surfice whit some soil becouse the organic fert smells bad .i have a ph meter dont know how to use it couse in the instructions it says i have to submerge it in a solution and ajust the ph whit a little screwdriver in the back of the device if somebody has expirience whit this can i use some other solution couse in my i cant find to buy this solution i ordered the ph meter over the internet but now i dont have 2 weeks time to wait for the delivery

i did post this in the sick plants section but no one replied

do you have a pet store?? go get the ph strips or litmus (I think thats how you spell it) test. They have high and low range usually and sometimes come with some PH up/down scauce. they work ok till you can get a hydro specific up/down and some calibration fluid.

The meter will need calibration fluid that is 4.8 (I believe.. check your manual) And then one that is about 7ph. You adjust the appropriate adjustment screw as per your manual for the low and high Ph. Do the low one first and then the higher one. so yes.. you will have to order the two calibration solutions, but go get the aquarium ph tester to check for problems.

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Its all a lie! http://www.rollitup.org/grow-journal...ml#post2479535

way too soon to be adding ferts, if that saoil contains some already, then your good for the first 3-4 weeks, i think you got straight up nute burn , flush! then wait a couple more weeks to start adding nutes, remember 1/4 strength

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SOL: It's the Russian. AVI:A Russian? SOL:To be technical hes Uzbekistanian?AVI:I been dealing with those Russian dogs. AVI:give me a name.SOL:Urinov,Boris TONY:BORIS the BLADE? as in BORIS THE BULLET DODGER?AVI:why do they call him the bullet dodger?TONY: bcus he dodges Bullets Avi